Wireless charger



FIG. 1 is a front perspective view of a wireless charger, showing my new design;

FIG. 2 is bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the figures are for the purposes of illustrating portions of the wireless charger, which form no part of the claimed design. 

CLAIM The ornamental design for a wireless charger, as shown and described. 